Multi-Scale Optimization Method for Cable Tension Calculation in Long-Span Steel Box Arch Bridge with Cable-Stayed Buckle Suspension

DOI

10.2991/978-94-6463-856-1_29How to use a DOI?

Keywords

Bridge Engineering; Cable-Stayed Suspension; Cable Force Optimization; Influence Matrix; multi-scale optimization

Abstract

To address the prevalent inaccuracies in arch rib alignment and the illogical outcomes of cable forces encountered during the cable-stayed buckle suspension construction of long-span steel box arch bridges, we introduce a novel multi-scale optimization method for determining the cable forces in a 570-m-span basket-handle steel box arch bridge. The proposed approach utilizes a structural stiffness-displacement influence matrix and integrates a displacement calculation formula that accounts for the sequential assembly process. By constraining force variations between adjacent cables, the method leverages finite element software and algorithmic routines for the iterative determination of initial cable tensions. Results demonstrate that the implementation of algorithm-derived initial cable tensions in construction-phase FEA yields arch rib control point displacements within 0.2 cm of the desired single-stage arching displacement, thus satisfying the requirements for arch rib alignment accuracy. A comparative evaluation of various initial cable tension settings and computational methods confirms the algorithm’s efficacy in optimizing the pre-determined initial cable tension configuration, thereby ensuring compliance with the final arching displacement specifications.

Copyright

© 2025 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Pengxi Liu
AU  - Junlong Zhou
AU  - Xiaomin Liu
AU  - Wenbin Geng
AU  - Song Xue
AU  - Xiaopeng Li
AU  - Qiang Yi
PY  - 2025
DA  - 2025/09/22
TI  - Multi-Scale Optimization Method for Cable Tension Calculation in Long-Span Steel Box Arch Bridge with Cable-Stayed Buckle Suspension
BT  - Proceedings of the 2025 International Conference on Resilient City and Safety Engineering (ICRCSE 2025)
PB  - Atlantis Press
SP  - 304
EP  - 316
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-856-1_29
DO  - 10.2991/978-94-6463-856-1_29
ID  - Liu2025
ER  -